h.mx.mail.yahoo.com
DNS delegation of h.mx.mail.yahoo.com updated: May 21, 2013 6:11:15 AM
Delegation
step query auth servers
1 h.mx.mail.yahoo.com. . (d,g,f,i,h,m,e,c,l,k,b,a,j).root-servers.net. 2 h.mx.mail.yahoo.com. com. (i,m,l,h,k,a,j,e,b,c,g,d,f).gtld-servers.net. 3 h.mx.mail.yahoo.com. yahoo.com. (ns4,ns2,ns5,ns1,ns3).yahoo.com.
We pick d.root-servers.net , one of the 13 root servers (1), and ask it about h.mx.mail.yahoo.com and learn that com is delegated to 13 name servers (2), so we ask i.gtld-servers.net where we learn that yahoo.com is delegated to five name servers, including ns4.yahoo.com (3), so we ask that one and get the following answer:
Authoritative answer
net. com. yahoo.com. ns2.yahoo.com. ns5.yahoo.com. ns1.yahoo.com. ns4.yahoo.com. ns3.yahoo.com. ns8.yahoo.com. ns6.yahoo.com. mail.yahoo.com. root-servers.net. gtld-servers.net. mx.mail.yahoo.com. m.root-servers.net. a.root-servers.net. g.gtld-servers.net. e.gtld-servers.net. j.root-servers.net. i.gtld-servers.net. f.gtld-servers.net. m.gtld-servers.net. k.gtld-servers.net. h.root-servers.net. d.root-servers.net. d.gtld-servers.net. i.root-servers.net. h.gtld-servers.net. l.root-servers.net. k.root-servers.net. g.root-servers.net. b.gtld-servers.net. f.root-servers.net. c.gtld-servers.net. c.root-servers.net. a.gtld-servers.net. b.root-servers.net. l.gtld-servers.net. j.gtld-servers.net. e.root-servers.net. h.mx.mail.yahoo.com.
whois net whois com whois yahoo.com whois root-servers.net whois gtld-servers.net
whois yahoo.com , yahoo.com domain info api yahoo.com The mail server. Only There are several thousand of domains that only use the mail server . .
robtex on h.mx.mail.yahoo.com RBL listing of h.mx.mail.yahoo.com mnw
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